Intrinsic resolution

Resolution is without question a key element in accurate and detailed particle characterization. Particle populations that cannot be resolved cannot, in any sense, be distinguished from one another. While deconvolution techniques can provide particle size distribution curves from low resolution systems, the deconvolution must be based on assumptions about instrumental band broadening and band shape. In general, any detailed information lost because of poor resolution cannot be recovered by mathematical manipulation alone. In all cases, the quality of a size distribution curve will increase with the intrinsic resolution exhibited by the system. 

Intrinsic resolution, R, is defined by the minimum line width at half height, Avi/2, of the CoHft signal in a CDCI3 solution 60 to 80 Hz are typical values observed in lignin spectra, much higher than instrument specifications. 

Detector size One factor that greatly affects the spatial resolution is the intrinsic resolution of the scintillation detectors used in the PET scanner. For multidetector PET scanners, the intrinsic resolution (Rf) is related to the detector size d. R, is normally given by d/2 on the scanner axis at midposition between the two detectors and by d at the face of either detector. Thus it is best at the center of the FOV and deteriorates toward the edge of the FOV. For a 6-mm detector, the Ri value is mm at the center of the FOV and 6mm toward the edge of the FOV. For continuous single detectors, however, the intrinsic resolution depends on the number of photons detected, not on the size of the detector, and is determined by the full width at half maximum of the photopeak. 

As a comment of that, we conclude that phase segregation is not apparent. In good agreement with the XRD studies, we conclude form Fig. 6 that phase segregation does not seem to occur. It would be noted, however, that the intrinsic resolution of the microanal5dical essays (1 micron) does not permit to conclusively ruling out such hypothesis. 

Table 5.1. The intrinsic resolution of several Bragg reflections from symmetrically cut perfect and mosaic crystals.

In addition, aspect ratio considerations, dependent on mechanical stability and pattern collapse propensity of resist lines, limit the thickness of resists designed for these technology nodes to ultrathin resist thickness regimes ( 100 nm and lower). However, the aspect ratio considerations must be balanced against the etch stability requirements that ensure successful pattern transfer to underlying substrates in a device. Both the aspect ratio and etch stability requirements must be balanced against the intrinsic resolution, particularly pitch resolution, of the resist in question. Hence, there is a trade-off between aspect ratio requirements and etch stability requirements on the one hand, and pitch resolution on the other. Therein lies the motivation for these advanced resist-processing schemes. 

The method, therefore, affords a "surface probe" with the high intrinsic resolution of NMR. Furthermore, photo-CIDNP appears to be particularly useful in characterizing specific aromatic residues involved in interactions of proteins with ligands. 

Mixing depth and its effect on resolution are important considerations in the interpretation of concentration profiles of POPs in sediment (Eisenreich et al., 1989 Wong et al., 1995). The intrinsic resolution (r), the period over which any change in input rate of a chemical species will not be detected within the sediment profile, is dependent on sediment... 

Intrinsic resolution Temporal resolution within a stratigraphy, i.e., the amount of time represented in a stratigraphy that is obscured by mixing processes. 

The last generation of spectrometers is monochromatic, allowing a best resolution in energy (an intrinsic resolution of 0.28 eV is estimated [26]). Also the lateral resolution has increased in conventional equipment the lateral resolution was of the order of magnitude of 1 mm (in fact, the size of the area seen by the monochromator defined as the fwhm of the spatial intensity distribution is about 3 mm X 1 mm) whereas now it is about 10 fim. 

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